Plastic Bag Dryers: Buy or DIY?

We aren't in the habit of buying plastic bags, but we do keep a small collection to wash and reuse. Drying the bags usually entails propping them around utensils in the dish rack or over chopsticks in a jar. The thought of purchasing a plastic bag drying contraption for ourselves seems like a waste of money and resources. On the other hand…

… if someone was regularly washing a lot of bags and wanted a dedicated, sturdy drying rack, we wouldn't fault them for buying one of these gadgets. And we have to admit we're intrigued by fancy-sounding features like the Telescoping Bag Dryer's "adjustable antenna arms"!

Pictured are a few different ways to dry bags, including solutions you can purchase and those you can make yourself. What's your preference: buying or DIY-ing? Do you have any other techniques or products to recommend?